Hot Shot Men's Bulls-Eye Pop-Top Mitten Shell: 100% Polyester Microfleece/Insulation: 40 grams of 3M Thinsulate Insulation (65% Olefin/35% Polyester)/Lining: 100% Polyester Tricot Imported Lined with 40 grams of 3M Thinsulate Insulation Pop top features allows for use of bare fingers for ultimate dexterity This pop top design offers great versatility Machine wash cold Do not bleach, Dry Flat